Charlie Puth opened up about the old fling with Selena Gomez. (Photo: WENN)

In an interview with Billboard, Charlie talked about the story behind “We Don’t Talk Anymore,” his duet with Selena Gomez. (Photo: WENN)

“The only way a song like that can come across as real is if there’s something else going on behind the scenes,” Charlie said. (Photo: Instagram)

“And that’s what was happening. Very short-lived, very small, but very impactful. And it really messed me up.” (Photo: Instagram)

Puth also explained the reasons why their brief yet intense romance with Gomez came to an abrupt end. (Photo: Instagram)

“I’m trying to put this the best way possible: It wasn’t like I was the only person on her mind.” (Photo: Instagram)

In August 2016, Charlie confirmed via Twitter that he is no longer in touch with Gomez. (Photo: Twitter)

Shortly after the release of her duet with Charlie, Selena started dating The Weeknd. (Photo: WENN)

The couple had an almost 1-year relationship before calling it quits in October 2017. (Photo: Instagram)

A few days after breaking up with The Weeknd, it was confirmed that Selena Gomez had rekindled her love with her ex, Justin Bieber. (Photo: WENN)

Justin Bieber and Selena Gomez first dated back in 2010. (Photo: Instagram)

Since getting back together, the couple has kept a low-profile relationship. (Photo: WENN)

Charlie Puth opened up about the old fling with Selena Gomez. (Photo: WENN)

Once upon a time in 2016, there were hints that Charlie Puth and Selena Gomez had something a little more than a pop hit together. Rumors of their alleged romance swirled online that the pair were romantically linked, but they quickly disappeared, without leaving evidence of their accuracy.

And although almost two years later, Selena still hasn’t confirmed the fling, this time, Puth didn’t hold back on sharing the painful details about the “quick” romance with his fellow singer, as documented in their duet “We Don’t Talk Anymore.”

“I don’t kiss and tell, but the only way a song like that can come across as real is if there’s something else going on behind the scenes,” Charlie said in an interview with Billboard. “And that’s what was happening. Very short-lived, very small, but very impactful. And it really messed me up.”

“I’m trying to put this the best way possible: It wasn’t like I was the only person on her mind. And I think I knew that going in—what I was getting myself into.”

Ouch.

And if you’re thinking that “other person” in Selena’s mind is Justin Bieber—with whom she rekindled their love in 2017, just a few days after calling it quits with The Weeknd after dating for almost 1 year—you’re probably right.

‘Why’, you ask? Because the timing makes sense. Oh, and also because back in March 2016, Charlie did shout the words “f*** Justin Bieber” at one of his concerts—while singing “We Don’t Talk Anymore.” Coincidence? We don’t think so!